15 lines
309 B
Rust
15 lines
309 B
Rust
|
#![feature(deref_patterns)]
|
||
|
|
#![allow(incomplete_features)]
|
||
|
|
|
||
|
|
#[rustfmt::skip]
|
||
|
|
fn main() {
|
||
|
|
let mut b = Box::new(false);
|
||
|
|
match b {
|
||
|
|
deref!(true) => {}
|
||
|
|
_ if { *b = true; false } => {}
|
||
|
|
//~^ ERROR cannot assign `*b` in match guard
|
||
|
|
deref!(false) => {}
|
||
|
|
_ => {},
|
||
|
|
}
|
||
|
|
}
|